I’ve been trying to create a package for a language being internally developed. However, when I try to toggle the package, I get the message:

"The LanguageCaople package is alive! It's ALIVE!"

But this message remains on screen and never disappears when clicked or when any key is pressed. Regular keys pressed are added to the open file, and cursor keys work, but nothing else seems to. Creating a new window allows the editor to be used, but does not unstick the window with the message.

I presume this is a package load error of some kind, but can it be clarified?